Answer:
weathering
Explanation:
and involves the break down of rocks as a results of erosion, time
Lichens use chemicals to break down rocks, which will turn into soil.
I believe that the answer is frequency. :)
Coelom: fluid-filled body cavity lined with mesoderm
or coelomates: fluid-filled body cavity completely lined with cells from the mesoderm that separates digestive tract from the outer body wall, two openings for digestive system